US: 2T-4T to Europe Size 44-46
Cross-market children’s hats, beanies, caps, sun hats, and ear-flap hats apparel conversion mapping 2T-4T specifications into 44-46.

Analyzing Size Equivalence Across Markets
US: 2T-4T: Corresponds to a head circumference baseline of 50 (19.7 ) and age range 24–48 .
Europe Size 44-46: Corresponds to a head circumference baseline of 45 (17.7 ) and age range 6–12 .